[openssl-users] Encrypting using EC public key

[Norm Green]

Is there a way to encrypt a file using the openssl command with an 
elliptic curve public key?  Here's what I get when I try using OpenSSL 
1.1.0c :

normg>./openssl pkeyutl -encrypt -pubin -inkey secp256k1-public-key.pem 
-in a.txt -out a.txt.enc
pkeyutl: Error initializing context
140339244734272:error:0608B096:digital envelope 
routines:EVP_PKEY_encrypt_init:operation not supported for this 
keytype:crypto/evp/pmeth_fn.c:139:

normg>cat secp256k1-public-key.pem
-----BEGIN PUBLIC KEY-----
MFYwEAYHKoZIzj0CAQYFK4EEAAoDQgAE3bT9LIDRFNZ1D5QbA90zDh6UxDyYdrQv
XmxFEr1AwKnmeD8dAg4F62ddmzX76fNaw1QqLbmEQTLdrEYM3KxUdA==
-----END PUBLIC KEY-----


Norm Green